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$1.00 partial molar volume

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wisdomlover
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Q:

at 25 degree C, the density of a 50 percent by mass ethanol/water solution is .914g/cm^3. Given that the partial molar volume of water in the solution is 17.4cm^3/mol, what is the partial molar volume of the ethanol?   a: 56.4cm^3/mol    please explain.

 

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$1.00
56.3 cm^3/mol as the answer,,,
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  • Posted on Nov 21, 2011 at 7:08:17PM
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alveen7
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A:
Preview: ... 1 gram of solution, so mass of ethanol & water is 50% x 1 gram = 0.5 gram.   V = mol Ethanol x Vpartial-ethanol + mol water ...
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